Stress-induced transformation and textures in pseudoelastic CuAlMnZn shape memory alloy deformed in tension

0185827 - UJF-V 20033154 RIV US eng J - Journal Article
Neov, Dimitar - Lukáš, Petr - Šittner, Petr - Černík, M.
Stress-induced transformation and textures in pseudoelastic CuAlMnZn shape memory alloy deformed in tension.
Applied Physics A - Materials Science & Processing. Roč. 74, č. 2 (2002), s. S1095-S1097. ISSN 0947-8396. E-ISSN 1432-0630
R&D Projects: GA AV ČR IAA1048107; GA ČR GA202/03/0891
Institutional research plan: CEZ:AV0Z1048901
Keywords : neutron diffraction * strain * texture
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.231, year: 2002

Neutron powder diffraction and texture studies of CuAlMnZn shape-memory alloy (SMA) were performed in situ under tensile loads. The specimens were deformed up to 3% strain and the texture evolution in the austenite and stress-induced martensite was investigated. Small texture variations in austenite are discussed with the help of the SMA pseudoelasticity model. Very strong textures observed in the stress-induced martensite result from the preferential martensite-variant selection due to the applied tensile stress. The drawing fiber texture of the parent phase is inherited by the martensite texture through the mechanism of lattice correspondence associated with the martensitic transformation.
Permanent Link: http://hdl.handle.net/11104/0002110